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    //! Low level access to Cortex-M processors
    //!
    //! This crate provides:
    //!
    //! - Access to core peripherals like NVIC, SCB and SysTick.
    //! - Access to core registers like CONTROL, MSP and PSR.
    //! - Interrupt manipulation mechanisms
    //! - Safe wrappers around Cortex-M specific instructions like `bkpt`
    //!
    //! # Optional features
    //!
    //! ## `inline-asm`
    //!
    //! When this feature is enabled the implementation of all the functions inside the `asm` and
    //! `register` modules use inline assembly (`asm!`) instead of external assembly (FFI into separate
    //! assembly files pre-compiled using `arm-none-eabi-gcc`). The advantages of enabling `inline-asm`
    //! are:
    //!
    //! - Reduced overhead. FFI eliminates the possibility of inlining so all operations include a
    //! function call overhead when `inline-asm` is not enabled.
    //!
    //! - Some of the `register` API only becomes available only when `inline-asm` is enabled. Check the
    //! API docs for details.
    //!
    //! The disadvantage is that `inline-asm` requires a nightly toolchain.
    //!
    //! ## `const-fn`
    //!
    //! Enabling this feature turns the `Mutex.new` constructor into a `const fn`.
    //!
    //! This feature requires a nightly toolchain.

    #![cfg_attr(feature = "inline-asm", feature(asm))]
    #![deny(missing_docs)]
    #![no_std]

    extern crate aligned;
    extern crate bare_metal;
    extern crate volatile_register;

    #[macro_use]
    mod macros;

    pub mod asm;
    pub mod interrupt;
    #[cfg(not(armv6m))]
    pub mod itm;
    pub mod peripheral;
    pub mod register;

    pub use peripheral::Peripherals;

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